Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 138



Work Step by Step

1. A star has radical symmetry, so if you look at the pink angle labeled as $2\theta$, you will see that five of those fit into the 360$^{\circ} $of the circle: $360^{\circ}\div5=72^{\circ}$ 2. If $2\theta=72^{\circ}$ then $\theta=36^{\circ}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.